Retaining device



Dec. 10, 1935. c. H. RoLLAsoN 2,023,937

RETAINING DEVICE Filed April 5, 1933 Patented Dec. 10, 1935 A UNITEDg STATES RETAININ G DEVICE Charles H. Rollason, Wheeling,

to Wheeling Steel Corporation, W. Va., a corporation oi' Delaware W. Va., assignor n Wheeling,

Application April l5, 1933, serial No. 664,511

Claims.

,Thisinvention relates broadly to retaining devices, and more particularly to devices for use in retaining covers or heads inplace on containers or the like. It relatesstill `more particularly to retaining devices for maintaining heads in place on containers such as sheet metaldrums having outward peripheral projections at their mouths.

I preferably utilize discontinuous retaining means of the type adapted to be contracted about the container or the like to maintain the cover or head in place and to be expanded or permitted to expand so as to allow of removal of the retaining means so that the head or cover may be removed. The invention is in the nature of an improvement over prior devices of this same type whereby better and more eilicient operation is obtained. Other details, objects and advantages of the invention will become apparent as the following description of a present preferred embodiment thereof proceeds.

In theaccompanying drawing I have shown a present preferred embodiment of the invention, in which v Figure 1 is `a fragmentary elevational view with a portion in vertical cross-section of aicontainer having a head applied thereto and retaining means for retaining such head in place;

yFigure 2 is an elevational view of the retaining device shown in Figure 1 in expanded position;

Figure 3 is a horizontal cross-sectional view through the retaining device when in contracted position as shown in Figure 1;

Figure 4 is a detail elevational view partly in cross-section of one of the operating members;

Figure 5 is a detail elevational View of another of the operating members;

Figure 6 is a vertical cross-sectional view taken on the line VI-VI -of Figure 5; and

Figure 7 is a perspective view of another operating member.

Referring more particularly to the drawing, there is shown in Figure 1 a sheet metal drum 2 having an outwardly turned peripheral flange or bead 3 formed at its mouth. The drum 2 as shown is of circular cross-section and preferably has a permanently attached bottom. It may be of any preferred or well known construction.

The drum is provided with a head1 which has a peripheral cupped portion 5 adapted to overlie and cooperate with the bead 3 of the drum in a manner well known in the art. Agasket 6 is preferably interposed between the portion 5 of the head and the bead so that a tight or sealed joint between the drum and the head may be made.

There is provided a retaining device comprisving discontinuous retaining means shown as a split sheet metal ring 'I of generally U-shaped cross-section, although the specic form of the discontinuous retaining means may be varied 5 to suit the particular conditions encountered. The ring is adapted to be somewhat expanded or enlarged in diameter to enable it to be placed about the upper portion of the drum when the head is inplace thereon and then to be contracted-about the portion 5 of the head and the bead 3 of the drumso as to exert a wedging action thereon, tending to force the sametogether so as to tightly grip the packing 6 therebetween and form a tight or sealed joint. In cross-secl5 tion the ring I preferably has a curved intermediate portion 8 connecting two substantially straight portions 9 (Figure 1) which, upon contraction of the ring, tend to slide by wedging engagement in the radial direction to maintain the cover tightly in place on the drum.

Pivoted at I0 to one portion of the ring adjacent the split therein is a link or saddle plate II. Pivoted at I2 tothe opposite portion of the ring adjacent the split is another link I3. Pivoted to the link or saddle platel II at Il and to the link I3 at I 5 is a contracting member or lever I6. The saddle plate II, link I3 and contracting member or lever I6 are adapted cooperatively to contract the ring 1, this being accomplished by grasping the upper portion of the lever (Figure 2) and turning the same in the clockwise direction until the parts assume the relationship shown in Figure l. Such members are also so constructed and arranged that when in contracted position they will partially embrace the ring to strengthen the same at the split portion thereof and to insure maintaining of a tight closure. To this end the saddle plate II has a portion I1 extending horizontally above the plane of the ring and joining a generally downwardly extending portion I8, such portion I8 lying within the head so that when the parts of the ring are in contracted position such portion of the saddle plate assists in preventing accidental displacement of the parts. The lever I6 similarly has a horizontally extending portion I9 and a downwardly extending portion 20, and the link I3 has an inwardly extending portion 2 I. 50

Upon contraction of the retaining device the pivot I4 preferably moves below a line joining the pivots I0 and I2, and the pivot I5 moves approximately in line with, or slightly above. such line so that the outward reaction exerted on the ring by the drum and head will tend to tighten the connection rather than loosen it. Connected with the ring at 22 is a lug 23 having an ear 24 provided Witha hole 25 adapted, when the parts are in contracted position, to be aligned with a hole 26 in the lever I6-to receive a seal or the hasp of a padlock to prevent unauthorized removal of the head from the drum.

The provision of the two links Il and i3 carrying the lever I6 in such manner that the lever is not directly pivoted to the ring accomplishes two particular advantages, one being that anincreased mechanical advantage in contracting the ring is obtained, and another that the ends of the ring at the split portion thereof automatically tend to' align themselves upon application of the retaining device. o While I haveshown and described a present preferred embodiment of the invention, it is to be distinctly understood that the same is not limited thereto, but may be otherwise variously embodied within the scope of the following claims.

`I claim': y

1. A retaining device comprising discontinuous retaining means adapted' for application to a container or the like, a lever, a link pivoted to a portion of the retaining means adjacent a discontinuity thereof and pivoted to 'the lever at a point remote from an extremity thereof, a second l link pivoted to another portion of the retaining means adjacent said discontinuity and opposite said first mentioned portion and pivoted to the lever at a point more remote from said extremity thereof than'said rst mentioned point, said sec- 0nd mentioned link during operation of the device normally extending from said retaining means generally in a direction opposite said extremity of said lever.

2. A retaining device comprising discontinuous 7 retaining means adapted for application to a container or the like, a link pivoted toa portion ofthe rretaining means adjacent a discontinuity thereof, a second'link pivoted to another portion of the retaining means adjacent said discontinuity and opposite said first mentioned portion, and a member to which said links are respectively pivoted at spaced points, a line joining said points during operation of the device normally crossing said retaining means.

3. A retaining device comprising discontinuous lretaining means adapted for application to a container or the like, a link pivoted to a portion of the yretaining means adjacent a discontinuity thereof, a second link pivoted to another portion of the retaining means adjacent said discontinuity and opposite said first mentioned portion, and a member to which said links are respectively pivoted at spaced points, said links being so constructed and arranged that during operation of the device they normally extend generally in opposite directions fromsaid member f y f 4. A retaining device comprising discontinuous retaining means adapted for application to a. container orv the like, a link pivotedto a portion of theretaining means adjacent a discontinuity thereof. a second link pivoted to another portion of the `retaining means adjacent said discontinuity andopposite said first mentioned portion,V and a member to which said links are respectively pivoted'at spaced points, said links during operation of the device normally extending generally in oppositer directions from said member, said member having means connected therewith for operating the same. n

5. A retainingdevice comprising discontinuous retaining means adapted for application to a container or they like, a link pivoted to a. portion Y of the retaining means adjacent a discontinuity thereof, a second link pivoted to another portion of theretaining means adjacent said discontinuity and opposite said first mentioned portion, and a m'ember to which said links are respectively pivoted at spaced points, said member being so constructed and arranged that during operation of the @device it normally crosses said retaining means. v

CHARLES Haonmson. 

